How it works
The model runs month by month for 30 years. Buying pays the mortgage, PMI until you have 20% equity, property tax, insurance, HOA and maintenance; renting pays rent and renters insurance, both rising each year. The renter invests what the buyer spent up front (down payment and closing costs), and every month whichever side costs less invests the difference. What you'd have is the home's value minus selling costs and the loan still owed (plus the buyer's investments) against the renter's investments.